The Zarinpal Gateway for WooCommerce plugin for WordPress is vulnerable to Improper Access Control to Payment Status Update in all versions up to and including 5.0.16. This is due to the payment callback handler Return_from_ZarinPal_Gateway failing to validate that the authority token provided in the callback URL belongs to the specific order being marked as paid. This makes it possible for unauthenticated attackers to potentially mark orders as paid without proper payment by reusing a valid authority token from a different transaction of the same amount.
Weakness
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
Extended Description
Access control involves the use of several protection mechanisms such as:
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses:
Potential Mitigations
- Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
- Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/19.html
- https://cwe.mitre.org/data/definitions/441.html
- https://cwe.mitre.org/data/definitions/478.html
- https://cwe.mitre.org/data/definitions/479.html
- https://cwe.mitre.org/data/definitions/502.html
- https://cwe.mitre.org/data/definitions/503.html
- https://cwe.mitre.org/data/definitions/536.html
- https://cwe.mitre.org/data/definitions/546.html
- https://cwe.mitre.org/data/definitions/550.html
- https://cwe.mitre.org/data/definitions/551.html
- https://cwe.mitre.org/data/definitions/552.html
- https://cwe.mitre.org/data/definitions/556.html
- https://cwe.mitre.org/data/definitions/558.html
- https://cwe.mitre.org/data/definitions/562.html
- https://cwe.mitre.org/data/definitions/563.html
- https://cwe.mitre.org/data/definitions/564.html
- https://cwe.mitre.org/data/definitions/578.html
References
- https://plugins.trac.wordpress.org/browser/zarinpal-woocommerce-payment-gateway/trunk/class-wc-gateway-zarinpal.php#L359
- https://plugins.trac.wordpress.org/browser/zarinpal-woocommerce-payment-gateway/trunk/class-wc-gateway-zarinpal.php#L370
- https://plugins.trac.wordpress.org/browser/zarinpal-woocommerce-payment-gateway/trunk/class-wc-gateway-zarinpal.php#L380
- https://plugins.trac.wordpress.org/browser/zarinpal-woocommerce-payment-gateway/trunk/class-wc-gateway-zarinpal.php#L409
- https://plugins.trac.wordpress.org/browser/zarinpal-woocommerce-payment-gateway/trunk/class-wc-gateway-zarinpal.php#L412
- https://plugins.trac.wordpress.org/changeset/3445917/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e33fcd17-318b-408e-86bf-b4ece46121cc?source=cve